Answers to Physics Module Questions - Module #4

1. The force of gravity acting on a 100 kg person is ___ compared to the force of gravity on a 1 kg book
1. 4 times larger
2. the same
3. double
4. zero
5. 10 times larger
6. 100 times larger
7. lower
8. none of the above

2. There is only one force acting on an object. For the object to travel at constant velocity, this force must be
1. a constant non-zero value
2. a varying non-zero value
3. a constant zero value
4. a positive value
5. a negative value
6. none of the above

3. An object's mass is increasing while its acceleration is constant. The force applied to the object must
1. be increasing
2. be decreasing
3. stay the same
4. increase and then decrease
5. decrease and then increase
6. none of the above

4. An object is moving in a circle with constant speed. The object has
1. a constant velocity
2. zero acceleration
3. a constant acceleration
4. zero velocity
5. no forces acting on it
6. no net force acting on
7. changing velocity but constant acceleration
8. changing velocity and acceleration

5. A man weighs 900 N, and is standing with his feet across three bathroom scales so his weight is equally shared among the three scales. The reading on each scale is
1. 900 N
2. 2700 N
3. 300 N
4. 90 N
5. 30 N
6. none of the above